.fade-enter-active, .fade-leave-active {
  transition: opacity .5s;
    height: 100%;
    position: absolute;
    left: 0;
    top:0
}
.fade-enter, .fade-leave-active {
  opacity: 0;
  
    height: 100%;
    position: absolute;
    left: 0;
    top:0
}